When you enroll in an APNGA course, the course enrollment remains valid for 6 months.  Once a course expires, you will need to re-enroll to take the course. 

Here is the duration of each of the five APNGA courses.

  • Gauge Safety Course (with USDOT Hazmat Refresher): Total time: 4 to 6+ hours, comprised of 3+ hours video lessons, plus a 30-question practice test and 30-question certification test and RSO instruction.
  • HAZMAT Refresher Course: 53 minutes, plus a 10-question test.
  • Annual Employee Refresher Course: 1 hour, 45 minutes plus a 10-question test.
  • Radiation Safety Officer (RSO) Course: Total: 6 to 8+ hours.  Training Manual portion 4+ hours, Video portion: 4 hours, 8 minutes.
  • Do-It-Yourself (DIY) Annual Audit Course: 41 minutes.